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2. 30 Math Puzzles (with Answers) to Test Your Smarts - AOL

   www.aol.com/30-math-puzzles-answers-test...

   Who says math can't be fun?! These math puzzles with answers are a delightful challenge. The post 30 Math Puzzles (with Answers) to Test Your Smarts appeared first on Reader's Digest.

3. Mathematical puzzle - Wikipedia

   en.wikipedia.org/wiki/Mathematical_puzzle

   Mathematical puzzles require mathematics to solve them. Logic puzzles are a common type of mathematical puzzle. Conway's Game of Life and fractals, as two examples, may also be considered mathematical puzzles even though the solver interacts with them only at the beginning by providing a set of initial conditions. After these conditions are set ...

4. Twenty-One Card Trick - Wikipedia

   en.wikipedia.org/wiki/Twenty-One_Card_Trick

   Minor aspects of the presentation are adjustable, for example the cards can be dealt either face-up or face-down. If they are dealt face-down then the spectator must look through each of the piles until finding which one contains the selected card, whereas if they are dealt face-up then an attentive spectator can immediately answer the question of which pile contains the selected card.

5. Wason selection task - Wikipedia

   en.wikipedia.org/wiki/Wason_selection_task

   [1] [2] [3] It is one of the most famous tasks in the study of deductive reasoning. [4] An example of the puzzle is: You are shown a set of four cards placed on a table, each of which has a number on one side and a color on the other. The visible faces of the cards show 3, 8, blue and red.

6. 50 Trick Questions Guaranteed to Leave You Stumped

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   Put on your thinking cap and try answering as many of these trick questions as you can! The post 50 Trick Questions Guaranteed to Leave You Stumped appeared first on Reader's Digest.

7. Trick question - Wikipedia

   en.wikipedia.org/wiki/Trick_question

   Some testers intentionally include a couple trick questions, for various reasons. For example, test taking had become a skill in itself, without studying the material in-depth. [5] An example that tests whether the question was read carefully: "When a plane crashes on the border between the United States and Canada, where are the survivors ...